GB1360022A – Discharge lamps
– Google Patents
GB1360022A – Discharge lamps
– Google Patents
Discharge lamps
Info
Publication number
GB1360022A
GB1360022A
GB1703171A
GB1703171A
GB1360022A
GB 1360022 A
GB1360022 A
GB 1360022A
GB 1703171 A
GB1703171 A
GB 1703171A
GB 1703171 A
GB1703171 A
GB 1703171A
GB 1360022 A
GB1360022 A
GB 1360022A
Authority
GB
United Kingdom
Prior art keywords
mercury
magnesium
range
discharge lamps
yttrium
Prior art date
1971-05-25
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1703171A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thorn Electrical Industries Ltd
Original Assignee
Thorn Electrical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1971-05-25
Filing date
1971-05-25
Publication date
1974-07-17
1971-05-25
Application filed by Thorn Electrical Industries Ltd
filed
Critical
Thorn Electrical Industries Ltd
1971-05-25
Priority to GB1703171A
priority
Critical
patent/GB1360022A/en
1972-05-15
Priority to CA142,096A
priority
patent/CA959914A/en
1972-05-17
Priority to ZA723378A
priority
patent/ZA723378B/en
1972-05-24
Priority to DE2265321A
priority
patent/DE2265321C3/en
1972-05-24
Priority to IT24783/72A
priority
patent/IT955808B/en
1972-05-24
Priority to NL7207009.A
priority
patent/NL157748B/en
1972-05-24
Priority to DE2225223A
priority
patent/DE2225223C3/en
1972-05-25
Priority to AU42776/72A
priority
patent/AU459873B2/en
1974-05-30
Priority to CA201,200A
priority
patent/CA959913A/en
1974-07-17
Publication of GB1360022A
publication
Critical
patent/GB1360022A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J61/00—Gas-discharge or vapour-discharge lamps
H01J61/02—Details
H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
Abstract
1360022 Gas discharge lamps THORN ELECTRICAL INDUSTRIES Ltd 15 May 1972 [25 May 1971] 17031/71 Heading H1D An ultra-violet mercury discharge lamp has a filling including mercury, magnesium in the form of a halide and an inert gas, the weight ratio of magnesium to mercury vapour being in the range 0.002 : 1 to 0.1 : 1. Trace additions of halides of the following metals may also be included: gallium, thallium, aluminium, bismuth, iron, zinc, yttrium, chromium, and cadmium. The mercury partial pressure is in the range 0.25 to 10 atmospheres. An outer envelope of the lamp may have a coating of magnesium fluorogermanate or yttrium vanadate to generate visible light.
GB1703171A
1971-05-25
1971-05-25
Discharge lamps
Expired
GB1360022A
(en)
Priority Applications (9)
Application Number
Priority Date
Filing Date
Title
GB1703171A
GB1360022A
(en)
1971-05-25
1971-05-25
Discharge lamps
CA142,096A
CA959914A
(en)
1971-05-25
1972-05-15
Discharge lamps
ZA723378A
ZA723378B
(en)
1971-05-25
1972-05-17
Improvements in discharge lamps
DE2265321A
DE2265321C3
(en)
1971-05-25
1972-05-24
Mercury vapor lamp emitting ultraviolet light
IT24783/72A
IT955808B
(en)
1971-05-25
1972-05-24
MERCURY VAPOR DISCHARGE LAMP
NL7207009.A
NL157748B
(en)
1971-05-25
1972-05-24
MERCURY VAPOR DISCHARGE LAMP AND METHOD FOR MANUFACTURING THAT.
DE2225223A
DE2225223C3
(en)
1971-05-25
1972-05-24
Mercury vapor lamp emitting ultraviolet light
AU42776/72A
AU459873B2
(en)
1971-05-25
1972-05-25
Improvements in discharge lamps
CA201,200A
CA959913A
(en)
1971-05-25
1974-05-30
Discharge lamps
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB1703171A
GB1360022A
(en)
1971-05-25
1971-05-25
Discharge lamps
Publications (1)
Publication Number
Publication Date
GB1360022A
true
GB1360022A
(en)
1974-07-17
Family
ID=10087986
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1703171A
Expired
GB1360022A
(en)
1971-05-25
1971-05-25
Discharge lamps
Country Status (7)
Country
Link
AU
(1)
AU459873B2
(en)
CA
(1)
CA959914A
(en)
DE
(2)
DE2265321C3
(en)
GB
(1)
GB1360022A
(en)
IT
(1)
IT955808B
(en)
NL
(1)
NL157748B
(en)
ZA
(1)
ZA723378B
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2182486A
(en)
*
1985-10-04
1987-05-13
Ushio Electric Inc
Magnesium vapor discharge lamp
GB2183085A
(en)
*
1985-10-04
1987-05-28
Ushio Electric Inc
Iron vapor discharge lamp
Families Citing this family (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1397034A
(en)
*
1973-07-05
1975-06-11
Thorn Electrical Ind Ltd
Discharge lamps
NL7712058A
(en)
*
1977-11-02
1979-05-04
Philips Nv
LOW-PRESSURE MERCURY DISCHARGE LAMP.
DE2953446C2
(en)
*
1978-12-28
1983-12-22
Mitsubishi Denki K.K., Tokyo
High pressure metal vapor discharge lamp
1971
1971-05-25
GB
GB1703171A
patent/GB1360022A/en
not_active
Expired
1972
1972-05-15
CA
CA142,096A
patent/CA959914A/en
not_active
Expired
1972-05-17
ZA
ZA723378A
patent/ZA723378B/en
unknown
1972-05-24
IT
IT24783/72A
patent/IT955808B/en
active
1972-05-24
NL
NL7207009.A
patent/NL157748B/en
not_active
IP Right Cessation
1972-05-24
DE
DE2265321A
patent/DE2265321C3/en
not_active
Expired
1972-05-24
DE
DE2225223A
patent/DE2225223C3/en
not_active
Expired
1972-05-25
AU
AU42776/72A
patent/AU459873B2/en
not_active
Expired
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2182486A
(en)
*
1985-10-04
1987-05-13
Ushio Electric Inc
Magnesium vapor discharge lamp
GB2183085A
(en)
*
1985-10-04
1987-05-28
Ushio Electric Inc
Iron vapor discharge lamp
GB2182486B
(en)
*
1985-10-04
1990-06-06
Ushio Electric Inc
Magnesium and iron vapor discharge lamp
Also Published As
Publication number
Publication date
DE2225223B2
(en)
1977-07-14
NL7207009A
(en)
1972-11-28
AU459873B2
(en)
1975-04-10
AU4277672A
(en)
1973-11-29
DE2265321B2
(en)
1980-08-28
IT955808B
(en)
1973-09-29
ZA723378B
(en)
1973-02-28
NL157748B
(en)
1978-08-15
DE2265321A1
(en)
1977-06-16
DE2225223A1
(en)
1972-12-07
DE2265321C3
(en)
1982-09-30
DE2225223C3
(en)
1978-03-16
CA959914A
(en)
1974-12-24
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(en)
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(en)
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(en)
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(en)
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Electric discharge vessels
Legal Events
Date
Code
Title
Description
1974-11-27
PS
Patent sealed
1982-12-15
PCNP
Patent ceased through non-payment of renewal fee